Obsidia Island

Obsidia Island is on of the three islands that is inhabited by a legendary bird this island being Moltres. The outside of the island itself is a volcano. Many fire-type Pokémon can be found inside Obsidia Cavern which is located inside of the island. The island is like a mini version of Mt. Igneus. To catch Moltres, whom is inside of the cavern it is recommended to bring dusk and ultra balls to catch this legendary bird.

Trivia

 * Despite being surrounded by water, players can neither surf nor fish. This same case occurs on the Voltridia and Frigidia islands.